The effect of honeydew density on arthropod community structure was investigated in the Nothofagus forest of Nelson Lakes National Park, New Zealand. Pitfall trapping revealed no community response to honeydew density, whereas sticky trapping showed the community composition of trunk-dwelling arthropods varied along a honeydew gradient. Mycetophilidae, Staphylinidae, Pteromalidae and Margarodid...

l i h t c t c n b l l u t o ( a t Some freshwater snail species are severe pests to human health or agriculture. We tested the hypothesis that the fish Mylopharyngodon piceus, the black carp, may serve as a biological control agent of two pest snails, Physella acuta (a bank-dwelling snail) and Melanoides tuberculata (a substratum-dwelling snail). Experiments were carried out in the laboratory a...

The settlement pattern and dwelling sys tem reflect the socio-economic condition and culturalbehaviour of the community people. The riverine fishing community is one of the ancient and special communities of Bangladesh that has a unique lifes tyle and some special features characterize their dwellings. This paper aims at explaining the exis ting dwelling sys tem of one of the eighth oldes...

background: indoor radon gas (222rn) has been recognized as one of the health hazards for human. air radon comes mainly from basement soil and construction materials. saghand region with rich uranium mines lies 180 km from yazd, so the indoor radon concentration can be high. yazd, with population of about 457000, is the biggest city near saghand, thus, indoor gamma background radiation of yazd ...

SUMMARY: This study, based on phalangeal bone mineral density (BMD) of 1,174 community dwelling male volunteers aged 50 years or more from seven provinces in Sri Lanka, shows 5.8% prevalence of osteoporosis among them. Advancing age, less physical activity, and low body weight were associated with low BMD. Men with larger families were more likely to have a lower bone mineral density. PURPOSE: ...

background: radon, an invisible, odorless, heaviest (nine times heavier than air) and radioactive gas is an aberration (the only gas in the long decay chain of heavy metal elements). it is ubiquitously present in dwellings and in the environment. humans receive the greatest radiation dose in their homes. that's where they spend most time - typically 70%, more for small children. recent wor...